Improved spring bed-bottom



UNITED STATES PATENT FFICE.

CHARLES H. DUNKS, OF DETROIT, MICHIGAN.

IMPROVED SPRING- BED-BOTTOM.

Specification forming part of Leiters Patent No. 99,765, dated February15, 1870.

To all whom it 'may concern:

Be it known that I, CHARLES II. DUNKS, of Detroit, in the county ot'Wayne and State of Michigan, have invented a new and useful Improvementin Spring Bed-Bottoms; and I do declare that the following is a true andaccurate description thereof', reference being had to the accompanyingdrawings,and to the letters of reference marked thereon, and being apart of this specification, in which- Figure l vis an elevation, showingmy im` proved method of attaching a coiled spring to a metallictransverse bar in a spring-bed, and Fig. 2 is an enlarged detail of thesame.

Similar letters of reference indicate correspondin g parts in eachfigure.

The nature of this invention relates to an improvement in the method ofconnecting together coiled springs and metallic transverse bars in theconstruction of spring bed-bottoms 5 and consists in the peculiar mannerof inserting the points of the springs through corresponding holes insaid bars to accomplish the purpose designed, and in the intcrpositionof an elastic gasket or packing between the spring and the bar, for theprevention of noise in the bed when the same is occupied.

In the drawings, A represents a bar or slat, two or more of which aretransversely between the side rails of the bed to support the elasticsuperstructure. B are springs, coiled in the form of cones, and aresecured to the crossslats A by means of staples embracing theirlowermost convolution, and driven into said slats. The upper end of thewire, from which each spring is formed, is turned vertically downward,forming a hook, a.

C is a cross-bar, preferably of spring-steel, placed between the upperconvolutions ot' the springs, and is lirmly held in place by the hooks apassing down through holes properly disposed in said bar, which will bemore securely held in place if the hooks n be alternately insertedthrough the same from opposite sides thereof', as shown.

b is a gasket or packing of sheetrubber or other suitable fabric,interposed between the springs and the cross-bar at their points ofconnection, which prevents any rattling or rubbing ot' the two metalstogether when weight is imposed on the longitudinal slats, which formthe superstructure of the bed-bottom.

I am aware that npholsterers springs have their points turned over alittle, to prevent them from tearing their covering; and, while Iexpressly disclaim the turning of the point of the spring for suchpurpose,

What I do claim as myinvention, and desire to secure by Letters Patent,is

The spring B, having its point a. turned vertically downward, andprovided with packing b, in combination with the bars C and A, when eachof said parts is constructed as shown and described, and all arearranged to operate as and for the purposes set forth.

, CHARLES H. DUNKS.

Witnesses H. F. EBERTs, H. S. SPRAGUE.

